Related Experiment Video

Updated: Aug 17, 2026

Platelet Adhesion and Aggregation Under Flow using Microfluidic Flow Cells
10:10

Platelet Adhesion and Aggregation Under Flow using Microfluidic Flow Cells

Published on: October 27, 2009

[Effect of lipoproteins of different classes on platelet aggregation]

E Sh Khalfen, S S Belousova, I L Shvarts

    Kardiologiia
    |February 1, 1984
    PubMed

    Insights

    High-density lipoproteins (HDL) significantly inhibit platelet aggregation in both healthy individuals and coronary patients. Low- and very-low-density lipoproteins showed no significant effect on platelet aggregation.

    Area of Science:

    • Cardiovascular Science
    • Lipid Metabolism
    • Hemostasis

    Background:

    • Platelet aggregation is a key factor in thrombosis and cardiovascular disease.
    • Lipoproteins, including HDL, LDL, and VLDL, play complex roles in cardiovascular health.
    • Understanding lipoprotein influence on platelet function is crucial for managing coronary artery disease.

    Purpose of the Study:

    • To investigate the impact of different lipoprotein fractions on platelet aggregation.
    • To compare the effects in individuals with coronary artery disease versus healthy controls.

    Main Methods:

    • Platelet-rich plasma from coronary patients and normal subjects was preincubated with HDL, LDL, and VLDL fractions.
    • Platelet aggregation capacity was measured after preincubation.
    • Experiments were conducted using both whole blood and washed platelets.

    Main Results:

    • High-density lipoproteins (HDL) demonstrated a marked inhibitory effect on platelet aggregation in all subjects.
    • Low-density lipoproteins (LDL) and very-low-density lipoproteins (VLDL) combined had no significant impact on platelet aggregation.
    • The inhibitory effect of HDL on platelet aggregation was most pronounced in washed platelets.

    Conclusions:

    • HDL possesses significant anti-aggregatory properties relevant to cardiovascular health.
    • HDL's protective effect on platelet aggregation is evident in both healthy and coronary artery disease populations.
    • Further research into HDL's mechanisms could yield novel therapeutic strategies for thrombotic disorders.

    More Related Videos

    Differential Effects of Lipid-lowering Drugs in Modulating Morphology of Cholesterol Particles09:15

    Differential Effects of Lipid-lowering Drugs in Modulating Morphology of Cholesterol Particles

    Published on: November 10, 2017

    Analyzing Platelet Subpopulations by Multi-color Flow Cytometry08:04

    Analyzing Platelet Subpopulations by Multi-color Flow Cytometry

    Published on: June 10, 2025

    Related Concept Videos

    Lipid-derived Compounds in the Human Body01:31

    Lipid-derived Compounds in the Human Body

    Fats and lipids are crucial components in the human body. Some lipid-derived compounds, such as fat-soluble vitamins, eicosanoids, lipoproteins, and glycolipids, also play unique roles to support various  biological processes .
    Fat-soluble Vitamins
    Fat-soluble vitamins, including vitamins A, D, E, and K, are required in minimal quantities, but their deficiencies can lead to severely abnormal physiological conditions. For example, vitamin A deficiency can cause night blindness, dry skin, delayed...
    Formation of the Platelet Plug01:22

    Formation of the Platelet Plug

    The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss.
    As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
    Factors Affecting Protein-Drug Binding: Drug-Related Factors01:18

    Factors Affecting Protein-Drug Binding: Drug-Related Factors

    Drug binding to proteins is a complex phenomenon influenced by various drug-related factors, each playing a significant role in the interaction between drugs and proteins within the body.
    One crucial factor in drug-protein binding is the drug's lipophilicity or its affinity for fat. More lipophilic drugs tend to have higher binding extents. For example, highly lipophilic drugs like cloxacillin exhibit substantial protein binding, with as much as 95% of the drug binding to proteins. In contrast,...
    Blood Studies for Cardiovascular System III: Serum Lipid Profile01:25

    Blood Studies for Cardiovascular System III: Serum Lipid Profile

    Understanding serum lipids is crucial for maintaining cardiovascular health and preventing heart disease and stroke.
    Serum lipids are fats and fatty substances in the blood and are crucial for various bodily functions, including energy storage, cellular structure, and hormone production. Serum lipids consist of cholesterol, triglycerides, and phospholipids.
    Cholesterol is a soft, fat-like substance found in all body cells. It is crucial for producing hormones, vitamin D, and substances that aid...